Thanks to all for these replies. It'll take me a couple of days to digest them.
One thing I'll throw out there it my impression that server sizing is not an easy thing to figure out. Several of the links that used to appear on the ltsp.org wiki are broken, and the edubuntu/LTSP manual that has various online incarnations tends to undersell the horse-power needed for the server IMO. Even after 3-4 years of running LTSP installations I can't figure out just how many active users/TC's I should be able to hang off a Quad Core 3 Ghz opteron with 16 Gigs ram. I've seen figures between 20-150. My experience show's about 20-25 before performance goes to the dogs. I've been told that local apps changes the equation, but I am waiting for the next Ubuntu LTS before I iterate. Oh, heck, I'll throw out another thing :-) I was surprised to see that there was so much disk write activity. I am trying to figure out what is getting written where. I found a tool called IOTOP that should correlate disk i/o to particular apps. Unfortunately it uses some kernel hooks that aren't supported by Ubuntu kernels so i am in the process of compiling an ubuntu kernel with the proper stuff included. Does anyone know where all the disk writes might be coming from and going to? Is there a lot of writing to users mozilla profiles or /tmp? Thanks! John ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
